/* 完美 3 列布局 */
.card-columns-container {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}
.card-columns-container .card-link {
    width: calc(33.333% - 14px);
    will-change: transform;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}
/* 平板：一行2个 */
@media(max-width:992px){
    .card-columns-container .card-link {
        width: calc(50% - 10px);
    }
}

/* 手机：一行1个 */
@media(max-width:768px){
    .card-columns-container .card-link {
        width: 100%;
    }
}

.card {
    width:100%;
    margin-bottom:0;
    transition: all 0.3s ease;
}
.card-link {
    display:block;
    text-decoration:none;
    color:inherit;
}
.card-link:hover .card {
    transform: translateY(-6px); /* 向上移动 6px */
    box-shadow: 0 0.8rem 2rem rgba(0,0,0,.15) !important; /* 更大气的阴影 */
}
.dingzhi{color:#f5a044}
.pagination .page-item.active .page-link {background:#0d6efd; border-color:#0d6efd;}
.img-box{position:relative; width:100%; height:200px; background:#f5f5f5; margin-bottom:15px; border-radius:5px; overflow:hidden;}
.img-box img{position:absolute; top:0; left:0; width:100%; height:100%; object-fit:cover;}

/* 内容图片优化 */
.content-img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
/* 下载模块 */
.float-download {
    position: fixed;
    right: 20px;
    top: 20%;
    z-index: 9999;
    width: 280px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.1);
    padding: 20px;
}
.float-download .title {
    text-align: center;
    font-size: 18px;
    font-weight: bold;
    color: #28a745;
    margin-bottom: 15px;
}
.float-download .btn-group {
    display: flex;
    margin-bottom: 15px;
}
.float-download .btn-group .btn {
    flex: 1;
    border-radius: 0;
    font-size: 15px;
    padding: 10px;
    border: none;
}
.float-download .btn-group .btn:first-child {
    border-top-left-radius: 5px;
    border-bottom-left-radius: 5px;
    background-color: #28c76f;
}
.float-download .btn-group .btn:last-child {
    border-top-right-radius: 5px;
    border-bottom-right-radius: 5px;
    background-color: #36d399;
}
.float-download .info-item {
    color: #666;
    font-size: 14px;
    margin-bottom: 8px;
    border-bottom: 1px solid #eee;
    padding-bottom: 8px;
}
.float-download .info-item:last-child {
    border-bottom: 0;
    margin-bottom: 0;
    padding-bottom: 0;
}
.float-download .info-tip {
    color: #999;
    font-size: 13px;
    margin-top: 10px;
}
/* 复制提示 */
.copy-toast {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0,0,0,0.75);
    color: #fff;
    padding: 12px 24px;
    border-radius: 6px;
    z-index: 99999;
    display: none;
}
#pwdText{display: none;}

/* 免责声明（电脑端在下载框下方） */
.disclaimer-popup {
    position: fixed;
    top: calc(20% + 340px);
    right: 20px;
    z-index: 998;
    width: 280px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    padding: 20px;
}

/* 手机端 */
@media (max-width: 768px) {
    .float-download {
        position: relative !important;
        top: auto !important;
        right: auto !important;
        width: 100% !important;
        margin: 20px 0;
        padding: 15px;
        display: block !important;
    }
    .disclaimer-popup{
        display: none !important;
    }
    .row{
         margin-right: 0; 
         margin-left: 0;
    }
    .mt-2 {
        margin-top: initial !important;
    }
    .small{font-size:.633em;}
    .text-center{display: none;}
}